Migrate to pytorch 1.1.0

[jessica-santos]

Hi, the code will be update for a new version of pytorch?

I'm trying to do this by my own, but I'm new to pytorch and finding some issues. After changing the .data to item, I try to run the code but receive RuntimeError: cuDNN error: CUDNN_STATUS_BAD_PARAM

[yl-1993]

@jessica-santos change .data to .data.item() may work for you

[tueboesen]

You need to change things in both main.py and losses.py

I looked in the forks of the code and found someone who had already done the changes, and just copied those changes, I used this one:
https://github.com/bl0/mean-teacher/tree/master/pytorch/mean_teacher

[jessica-santos]

Thank you!